Boiler-tube cleaner.



E@ D@ E@ C. M. HALL.

BOILER TUBE CLEANER.

APPLIOATION FILED Nov. 4, 1912.

@n own/to@ QAM @Imi/kwam@ UNITE-D sTArEs PATEN 'nur CHARLES M. HALL,oEMARIoN, INDIANA.

BOILERFTUBE CLEANER.

are provided to blow compressed air or steam through the tubes for thepurpose of removing soot or other deposits therefrom.

An important object. of this vinvention is to provide a device of theabove ment-io-ned character, which is simple in construction, easy tooperate, and will quickly cleanse the boiler tubes.

A further objectof the invention is to provide a device of the abovementioned character, which is formed of few and sim- .ple parts that arereadily detachable for the purpose of repair or the like.

Oth'enobjects andadvantages of the in-I vention will be apparent duringthe course' of the following description.

In -the accompanying drawing forming a part of this speciiication, thefigure is a front view of the device, parts .thereof being shown insection.

In the drawings wherein for the purpose of illustration, I have shown apreferred embodiment of my invention, the numeral 1 designates the shellof a horizontal boiler, provided with tube sheets or heads 2, forreceiving boiler tubes 3, as is customary.

These boiler tubes are shown as disposed in horizontal rows.

The numeral 4 designates a horizontal support or beam disposed near-andabove the rear end of the boiler. The device com prises a relativelystationary vertical main shell or body portion 5 attached to cables 6 orthe like, which in turn are connected.

with the support 4. Any other suitable means may be employed in additionto these cables to hold the shell 5 against movement.

Having screw-threaded engagement with the upper end of the shell 5 is asleeve7, having its upper end closed by ay plug 8, which in turn hasscrew-threaded engagement therewith. The lower end of the main shell 5is partly closed by a cap 9 having screw-threaded engagement therewith.

Leading into the sleeve 7 is a pressure Specification of Letters Patent.Application filed November 4, 1912. Serial No. 729,386.

Patented aug. 5,1913.

Supply pipe 10, having suitable connection with Steam or compressed airsupply pipe 11. A valve 13 is employed to control the passage of steamercompressed air int-o the pipe V10, as shown. Connected with the pipes 10and 11 is a drain or drip pipe 12, provided with a valve 14, as shown.

The numeral 15 designates a T-shaped pipe including vertical andhorizontal arms 16 and 17.. The vertical arm 16 passes through theapertured cap 9 and is mounted to reciprocate within the mainshell v5,as shown. The horizontal arm 17 has its ends closed by caps 18 and Suchhorizontal arm is provided upon its side adjacent' the boiler tubes 3with suitably spaced openings or apertures 19.

The head 8 is provided with a stuffing box 20, through which operates areciprocatory rod 21 having its lower end connected with the verticalarm v16 by' means of a coupling 22. This couplingl comprises a spiderportion 23 formed upon a ring 24, which has screw-threaded engagementwith the upper end of the vertical arm 16, as shown. The numeral 25designates a clamping ring also' having screw-threaded engagement withthe upper end of the arm 16 and cooperating with the ring '24 to retaina packing ring 26 in place. Connected with the rod 21 is a cable 27,passed about pulleys 28, which are mounted upon thev support 4. Acounter-weight '29 is attached to the lower free end of the cable.

The operation of the device is as follows :-By opening valve 13,compressed air or steam will be fed through the pipe y10 into the sleeve7 and hence through the spider portion 23 into the vertical arm 16 ofthe T-shaped pipe 15; Ihe horizontal` arm 17 being dis osed adjacent ahorizontal row of the boiler tubes 3, the steam or compressed air willbe blown through said tubes to properly cleanse them. The shaped pipe15- may be vertically moved to bring the horizontal arm 17 thereofadjacent tubes. It is obvious that the counter weight 29 will retain theT-shaped pipe 15 inits new position when moved thereto. `It is alsoobvious that the main shell 5 is relatively stationary while thevertical arm 16 and associated elements telescope or reciprocatetherein. The rings 24 and 25, together with the packing ring 26, preventthe compressed air or steam from escaping another horizontal row ofboiler into the lower end of the-main shell 5. llt is obvious that thesleeve 7 head 8, rod 21,

T-shaped pipe 15, and associated elements,-

the same, and that certain changes in the shape, size, and arrangementof parts may be resorted to Without departing from the spirit of theinvention or the scope of the subjoined claim.

Having thus described my invention, I claim A device to blow out thetubes of a boiler which has such tubes arranged in horizontal rows,comprising the combination With a support disposed above the boiler, ofa vertical relatively stationary main shell sus- -with the Localespended from the support, a T-shaped pipe including a horizontalperforated arm and a vertical arm passing into the main shell, a rodpassing into' the upper end' of the main shell, a splder-couplingconnecting the rod vertical arm of the T-shaped pipe, pulley or pulleysmounted upon said support, a cable assed about the pulleys and connectedwitg said rod, a counter Weight connected with the cable, a pressuresupply pipe connected with the main shell, steam or air pressure supplypipe connected with thefpressure supply pipe, a Valve connected in thesteam or compressed air supply pipe and a valved drain pipe connectedwith the steam or air pressure supply pipe.

In testimony whereof I aiX my signature in presence of two witnesses.

CHARLES M. HALL.

